Cosa Identifies Over 25 km of Prospective Conductive Strike Length at the Astro Uranium Project, Athabasca Basin, Saskatchewan
Cosa Resources (OTCQB: COSAF) has announced significant findings from its ZTEM survey at the Astro uranium project in Saskatchewan's Athabasca Basin. The survey, funded by partner Global Uranium, has identified over 25 kilometers of prospective east-northeast trending conductive strike length.
The comprehensive survey, covering 1,487 line-kilometers, revealed conductive trends following a break between magnetic high and low zones - a setting favorable for uranium deposits. This marks the first comprehensive EM survey in the area, with results significantly upgrading the project's exploration potential. The conductive corridors identified are similar to those hosting tier-1 deposits like Cigar Lake and McArthur River mines.
The project is part of an option agreement announced in April 2025, allowing Global Uranium to earn up to 80% interest in the Astro project over five exploration stages.
Cosa Resources (OTCQB: COSAF) ha annunciato risultati significativi dal sondaggio ZTEM sul progetto Astro, nel bacino di Athabasca, Saskatchewan. L’indagine, finanziata dal partner Global Uranium, ha identificato oltre 25 chilometri di tratto conduttivo orientato ENE.
Il rilevamento completo, che ha coperto 1.487 line-kilometri, ha mostrato fasci conduttivi lungo una frattura tra zone magnetiche ad alta e bassa intensità — un contesto favorevole ai depositi di uranio. Si tratta della prima indagine EM completa nell’area, con i risultati che aumentano significativamente il potenziale esplorativo del progetto. I corridoi conduttivi individuati sono simili a quelli che ospitano giacimenti di livello 1 come Cigar Lake e McArthur River.
Il progetto fa parte di un accordo di opzione annunciato ad aprile 2025, che consente a Global Uranium di ottenere fino all’80% di interesse nel progetto Astro in cinque fasi esplorative.
Cosa Resources (OTCQB: COSAF) ha anunciado hallazgos significativos de su estudio ZTEM en el proyecto Astro, ubicado en la cuenca de Athabasca, Saskatchewan. El estudio, financiado por su socio Global Uranium, ha identificado más de 25 kilómetros de trazo conductivo con orientación este-noreste.
La encuesta integral, que cubrió 1.487 line-kilómetros, mostró tendencias conductivas que siguen una zona de separación entre regiones magnéticas altas y bajas, un entorno favorable para depósitos de uranio. Esta es la primera encuesta EM integral en la zona, y sus resultados elevan considerablemente el potencial de exploración del proyecto. Los corredores conductivos identificados son similares a los que albergan depósitos de primer nivel como Cigar Lake y McArthur River.
El proyecto forma parte de un acuerdo de opción anunciado en abril de 2025, que permite a Global Uranium obtener hasta un 80% de interés en el proyecto Astro a lo largo de cinco etapas de exploración.
Cosa Resources (OTCQB: COSAF)가 Saskatchewan 주 Athabasca Basin의 Astro 프로젝트에서 ZTEM 조사에서 중요한 발견을 발표했습니다. 파트너 Global Uranium이 자금을 뒷받침한 이 조사는 전방향 동북동 방향의 도전적(전도성) 방향 길이가 25km 이상임을 확인했습니다.
총조사(1,487 line-kilometers)를 포함한 이 포괄적 조사는 자성 고저대의 구역 사이의 단절을 따라 전도성 추세를 드러냈으며, 이는 우라늄 매장에 유리한 환경입니다. 이는 이 지역에서의 최초의 포괄적 EM 조사로, 결과는 프로젝트의 탐사 잠재력을 크게 향상시켰습니다. 확인된 전도성 회랑은 Cigar Lake 및 McArthur River 광산과 같은 1급 광상에 해당하는 곳과 유사합니다.
이 프로젝트는 2025년 4월에 발표된 옵션 계약의 일부로, Global Uranium이 Astro 프로젝트에서 다섯 차례의 탐사 단계에 걸쳐 최대 80%의 지분을 취득할 수 있도록 합니다.
Cosa Resources (OTCQB: COSAF) a annoncé des résultats importants de son levé ZTEM sur le projet Astro, dans le bassin Athabasca, Saskatchewan. L’étude, financée par son partenaire Global Uranium, a identifié plus de 25 kilomètres de longueur de détente conductrice orientée ENE.
L’enquête exhaustive, couvrant 1 487 line-kilomètres, a révélé des tendances conductrices suivant une rupture entre des zones magnétiques hautes et basses — un contexte favorable aux dépôts d’uranium. Il s’agit de la première campagne EM exhaustive dans la région, et les résultats renforcent considérablement le potentiel d’exploration du projet. Les couloirs conducteurs identifiés sont similaires à ceux qui accueillent des gisements de premier ordre comme Cigar Lake et McArthur River.
Le projet fait partie d’un accord d’option annoncé en avril 2025, permettant à Global Uranium d’acquérir jusqu’à 80% d’intérêt dans le projet Astro au cours de cinq étapes d’exploration.
Cosa Resources (OTCQB: COSAF) hat bedeutende Ergebnisse der ZTEM-Untersuchung des Astro-Projekts im Athabasca-Becken in Saskatchewan bekannt gegeben. Die Studie wurde vom Partner Global Uranium finanziert und identifizierte über 25 Kilometer eine elektrisch leitfähige Tragefläche mit ENE-Ausrichtung.
Die umfassende Untersuchung, die 1.487 Linienkilometer abdeckte, zeigte leitfähige Trends, die einer Bruchstelle zwischen magnetisch hohen und niedrigen Zonen folgen — eine Konstellation, die für Uranerzvorkommen günstig ist. Dies ist die erste umfassende EM-Studie in der Region und die Ergebnisse erhöhen das Explorationspotenzial des Projekts deutlich. Die identifizierten leitfähigen Korridore ähneln denen, die T1-Lagerstätten wie Cigar Lake und McArthur River beherbergen.
Das Projekt ist Teil einer im April 2025 angekündigten Optionsvereinbarung, die Global Uranium ermöglicht, bis zu 80% Anteil am Astro-Projekt über fünf Erkundungsphasen zu erwerben.
Cosa Resources (OTCQB: COSAF) أعلنت عن نتائج مهمة من مسح ZTEM على مشروع Astro في حوض Athabasca بــ Saskatchewan. المسح، الذي موله الشريك Global Uranium، حدّد أكثر من 25 كيلومترًا من امتداد موصل شرق-شمال شرق.
أظهر المسح الشامل، الذي غطّى 1.487 خط-كم، اتجاهات موصلة تتبع فاصلًا بين مناطق مغناطيسية عالية ومنخفضة — وهو بيئة مواتية لودائع اليورانيوم. وهذه هي أول مسح EM شامل في المنطقة، مع نتائج ترفع بشكل كبير من إمكانات الاستكشاف للمشروع. المسارات الموصلية التي تم تحديدها تشبه تلك التي تستضيف رواسب من الدرجة الأولى مثل Cigar Lake وMcArthur River.
يأتي المشروع ضمن اتفاقية خيار أُعلنت في أبريل 2025 تسمح لـ Global Uranium بأن تحصل على ما يصل إلى 80% من الاهتمام في مشروع Astro خلال خمس مراحل استكشافية.
Cosa Resources (OTCQB: COSAF) 已宣布在萨斯喀彻温省阿萨巴卡盆地的 Astro 项目上完成的 ZTEM 调查取得重要发现。该调查由合作伙伴 Global Uranium 资助，已确认 超过 25 公里东-偏东北向的导电走向段。
这项覆盖 1,487 行公里(line-km) 的综合勘探显示导电趋势沿着磁性高区与低区之间的断裂带延展——这一环境有利于铀矿床的形成。这是该区域首次开展的全面 EM 调查，结果大幅提升了该项目的勘探潜力。所识别的导电通道类似于承载一级矿床的通道，如 Cigar Lake 与 McArthur River。
该项目是 2025 年 4 月宣布的一项期权协议的一部分，允许 Global Uranium 在五个勘探阶段内获得 Astro 项目最多 80% 的权益。
- Discovery of 25km of prospective uranium-bearing conductive strike length
- Survey fully funded by partner Global Uranium under option agreement
- Location in same geological setting as tier-1 uranium deposits Cigar Lake and McArthur River
- First comprehensive EM survey in the area showing promising results
- Project still in early exploration phase with no drilling completed
- Potential dilution of ownership up to 80% through option agreement
Vancouver, British Columbia--(Newsfile Corp. - September 17, 2025) - Cosa Resources Corp. (TSXV: COSA) (OTCQB: COSAF) (FSE: SSKU) ("Cosa" or the "Company") is pleased to announce that project-wide ZTEM surveying at the Astro uranium project ("Astro" or the "Project") has identified over 25 kilometres of prospective east-northeast trending conductive strike length. The survey was fully funded by Cosa's partner, Global Uranium Corporation (CSE: GURN) (OTCQB: GURFF) (FSE: Q3J) ("Global Uranium") per the option agreement (the "Agreement") announced by the Company on April 9th, 2025, which gives Global Uranium the right to earn up to an
Highlights
Over 25 km of prospective east-northeast trending conductive strike length identified
Tier-1 Athabasca uranium deposits like Cigar Lake and McArthur River are located exclusively on east- and northeast-trending conductive corridors
Results significantly upgrade Astro for future exploration
Survey and supporting work fully funded by Global Uranium
Andy Carmichael, VP Exploration of Cosa, commented: "This is the first time this area has received a comprehensive EM survey, and the results are encouraging. Excellent work by Geotech Ltd and Condor North Consulting has identified approximately 25 kilometres of highly prospective conductive strike length within the Project. We are excited to continue advancing Astro towards inaugural drill testing with our partner Global Uranium. These east-northeast trending conductive corridors are high priority exploration targets in the Athabasca Basin as they are known to host tier-1 deposits like McArthur River and Cigar Lake."
Survey Results
A comprehensive survey comprising over 1,487 line-kilometres of Z-Tipper Electromagnetic (ZTEM) surveying was flown to advance the understanding of basement geology and prospectivity of the underexplored Astro Project, and to highlight priority areas to advance toward initial drill testing.
The most significant result from the survey is the identification of an approximately 25-kilometre-long trend of basement conductivity within the northern half of Astro. Notably, the conductive trend follows a break between magnetic high and low zones, a compelling setting for focusing structures critical to the formation of Athabasca uranium deposits. East and northeast trending conductive corridors, especially where intersected by regional-scale structures, have been the primary target for uranium exploration within the Athabasca Basin for decades as these trends are well known for hosting tier-1 uranium deposits, including Cameco's currently producing Cigar Lake and McArthur River mines.
Results of the survey have significantly upgraded Astro, where favourably oriented conductive trends were previously unknown. Cosa will work closely with its partner, Global Uranium, to develop and execute follow up target generation programs ahead of drill testing. Immediate follow up work is likely to include Ambient Noise Tomography (ANT) for further strike prioritization and to aid in the identification of hydrothermal alteration systems, forward modelling of EM data and ground-based EM, and diamond drilling.
Exclusive to Geotech, the ZTEM system is widely used within the Athabasca Basin as it boasts a demonstrated industry leading ability to provide a wide range of frequency measurements with high accuracy and resolution at depth. Condor Consulting Inc. ("Condor"), recognized experts in the field of geophysical data processing and interpretation with extensive experience with both the ZTEM system and the Athabasca Basin, were commissioned to complete real-time quality Assurance during data acquisition followed by processing and analysis of the survey data.
About Astro
The Astro Project is located roughly 28 kilometres west of Cameco's McArthur River Mine, the world's largest high-grade uranium mine, and approximately 10 kilometres west of CanAlaska Uranium Ltd.'s Pike Zone which boasts world-class intersections (Figure 1). Only one historical drill hole, EK-01, has been completed on the Project. EK-01 failed to explain the strong conductive response it was targeting, suggesting the hole was not ideally located. However, the historical drill log notes favourable features in the sandstone including a brecciated and silicified interval in the upper portion, decametre-scale intervals of illite-dominated clay mineralogy throughout, and moderately bleached and slightly friable intervals in the lower 150 metres., All of these features are commonly associated with unconformity related uranium deposits of the Athabasca Basin. Roughly 11 kilometres to the southwest of EK-01 and within 700 metres of the Astro Project, strongly anomalous uranium geochemistry and pervasive hydrothermal alteration was intersected in the lower to medial sandstone of historical drill holes CR-06 and CR-15. Drilling completed by Cosa in 2024 failed to explain the source of the geochemical anomaly however ground-based EM work completed by Cosa indicates that the targeted conductor likely trends onto the Astro Project. Notably, the Project is unexplored for the extension of regional structures related to both the McArthur River and Fox Lake uranium deposits located roughly 28 and 17 kilometres east of Astro, respectively. Cosa and Global Uranium will execute a work plan designed to rapidly and efficiently canvas much of the Astro Project for identification of the most compelling drill targets. The depth to the unconformity at Astro is estimated to be between 850 and 975 metres.
Figure 1 - Cosa's Eastern Athabasca Uranium Projects with Joint Venture Projects
To view an enhanced version of this graphic, please visit:
https://images.newsfilecorp.com/files/9865/266777_b2e5202204c1c963_003full.jpg
Figure 2 - Astro Project with Basement Conductivity
To view an enhanced version of this graphic, please visit:
https://images.newsfilecorp.com/files/9865/266777_b2e5202204c1c963_004full.jpg
About Cosa Resources Corp.
Cosa Resources is a Canadian uranium exploration company operating in northern Saskatchewan. The portfolio comprises roughly 237,000 ha across multiple underexplored
In January of 2025, the Company entered a transformative strategic collaboration with Denison that has secured access to several additional highly prospective eastern Athabasca uranium exploration projects. As Cosa's largest shareholder, Denison gains exposure to Cosa's potential for exploration success and its pipeline of uranium projects.
Cosa's award-winning management team has a long track record of success in Saskatchewan. In 2022, members of the Cosa team were awarded the AME Colin Spence Award for their previous involvement in discovering IsoEnergy's Hurricane deposit. Prior to Hurricane, Cosa personnel led teams or had integral roles in the discovery of Denison's Gryphon deposit and 92 Energy's GMZ zone and held key roles in the founding of both NexGen and IsoEnergy.
The Company's core focus throughout 2025 is drilling at the Murphy Lake North Joint Venture. Murphy Lake North is a 70/30 Joint Venture between Cosa and Denison respectively and is located at the northern end of the Larocque Lake trend. The Project is within three kilometres of and on trend with the Hurricane deposit. Drilling completed by Cosa in 2025 identified multiple zones of strong sandstone structure and alteration and weakly elevated radioactivity underlain by large graphitic structures in basement rocks. The Company is planning additional work in 2026.
About Global Uranium Energy Corp.
Global Uranium Corp. focuses on exploring and developing uranium assets primarily in North America. The Company currently holds key uranium projects: the Wing Lake Property in the Mudjatik Domain of Northern Saskatchewan, Canada; the Northwest Athabasca Joint Venture with Forum Energy Metals Corp. and NexGen Energy Ltd. in the Northwest Athabasca region of Saskatchewan, Canada; and the Great Divide Basin District Projects, the Gas Hills District Projects, and the Copper Mountain District Projects in Wyoming, USA.
Technical Disclosure
Historical exploration results disclosed in this news release were sourced from the Saskatchewan Mineral Assessment Database (SMAD). These results have not been verified by the Qualified Person except as noted below and are relied upon for qualitative assessment of the Project only. At present, the Company does not intend to complete additional verification of historical results. SMAD sources for Astro include 74-0015, 74H13-0009, 74H11-0113, 74G16-0010, 74H13-0015, and 74H13-0016.
Verification of historical drilling results included confirming the approximate collar location of historical drill hole EK-01 from air photos. Verification of geophysical results is limited to verification of selected local grid locations for SMAD files 74-0015 and 74H13-0009 and qualitatively assessing whether drilling results from survey areas or along the interpreted strike can reasonably explain historical geophysical interpretations.
Qualified Person
The Company's disclosure of technical or scientific information in this press release has been reviewed and approved by Andy Carmichael, P.Geo., Vice President, Exploration for Cosa. Mr. Carmichael is a Qualified Person as defined under the terms of National Instrument 43-101. This news release refers to neighbouring properties in which the Company has no interest. Mineralization on those neighbouring properties does not necessarily indicate mineralization on the Company's properties.
Contact
Keith Bodnarchuk, President and CEO
info@cosaresources.ca
+1 888-899-2672 (COSA)
Neither TSX Venture Exchange nor its Regulation Services Provider (as that term is defined in policies of the TSX Venture Exchange) accepts responsibility for the adequacy or accuracy of this release.
Cautionary Statements
This press release contains forward-looking information within the meaning of Canadian securities laws (collectively "forward-looking statements"). Forward-looking statements are typically identified by words such as: believe, expect, anticipate, intend, estimate, plans, postulate and similar expressions, or are those, which, by their nature, refer to future events. All statements that are not statements of historical fact are forward-looking statements. These forward-looking statements or information may relate to anticipated exploration, development and/or expansion activities, including exploration of the Company's current Projects; the collaboration with Denison, including the Joint Venture, and the anticipated benefits thereof; and the outlook regarding Cosa's business plans and objectives.
Such forward-looking information and statements are based on numerous assumptions, including among others, that the results of planned exploration activities are as anticipated, the cost of planned exploration activities are as anticipated, that general business and economic conditions will not change in a material adverse manner, that financing will be available if and when needed and on reasonable terms, that third party contractors, equipment and supplies and governmental and other approvals required to conduct Cosa's planned exploration activities will be available on reasonable terms and in a timely manner. Although the assumptions made by Cosa in providing forward-looking information or making forward-looking statements are considered reasonable by management at the time, there can be no assurance that such assumptions will prove to be accurate.
By their nature, forward-looking statements involve known and unknown risks, uncertainties and other factors which may cause our actual results, performance or achievements, or other future events, to be materially different from any future results, performance or achievements expressed or implied by such forward-looking statements. Such factors and risks include, among others: Cosa may require additional financing from time to time in order to continue its operations which may not be available when needed or on acceptable terms and conditions acceptable; Cosa may not be able to maintain compliance with its contractual obligations with third parties; Cosa may not be able to maintain compliance with extensive government regulation applicable to its operations; domestic and foreign laws and regulations could adversely affect Cosa's business and results of operations; the stock markets have experienced volatility that often has been unrelated to the performance of companies and these fluctuations may adversely affect the price of Cosa's securities, regardless of its operating performance; the ongoing military conflict in Ukraine, and other risk factors set out in Cosa's public disclosure documents.
The forward-looking information contained in this news release represents the expectations of Cosa as of the date of this news release and, accordingly, is subject to change after such date. Readers should not place undue importance on forward-looking information and should not rely upon this information as of any other date. Cosa does not undertake any obligation to update these forward-looking statements in the event that management's beliefs, estimates or opinions, or other factors, should change.
To view the source version of this press release, please visit https://www.newsfilecorp.com/release/266777
FAQ
What did Cosa Resources (COSAF) discover in their recent Astro uranium project survey?
How does the Astro project's geological setting compare to other uranium deposits?
What is the partnership structure between Cosa Resources and Global Uranium for the Astro project?
What are the next steps for the Cosa Resources Astro uranium project?
